diff options
| -rw-r--r-- | Modules/_io/bufferedio.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/Modules/_io/bufferedio.c b/Modules/_io/bufferedio.c index 4133d34..aa52711 100644 --- a/Modules/_io/bufferedio.c +++ b/Modules/_io/bufferedio.c @@ -2092,7 +2092,7 @@ _io_BufferedWriter_write_impl(buffered *self, Py_buffer *buffer) self->raw_pos = 0; } avail = Py_SAFE_DOWNCAST(self->buffer_size - self->pos, Py_off_t, Py_ssize_t); - if (buffer->len <= avail) { + if (buffer->len <= avail && buffer->len < self->buffer_size) { memcpy(self->buffer + self->pos, buffer->buf, buffer->len); if (!VALID_WRITE_BUFFER(self) || self->write_pos > self->pos) { self->write_pos = self->pos; @@ -2161,7 +2161,7 @@ _io_BufferedWriter_write_impl(buffered *self, Py_buffer *buffer) /* Then write buf itself. At this point the buffer has been emptied. */ remaining = buffer->len; written = 0; - while (remaining > self->buffer_size) { + while (remaining >= self->buffer_size) { Py_ssize_t n = _bufferedwriter_raw_write( self, (char *) buffer->buf + written, buffer->len - written); if (n == -1) { |